DVC500 at last wrote:Yeah, I would go with roofing tar. What we used to call Creosote. It will outlast silicon. Theres gonna be alot of movement in that roof as it heats up and cools down. Both my workshop and my house has a Tin roof, and they have never leaked, as far as I can tell..
rockwood wrote:I am dismantling an old (wooden) pole barn and will be putting it back together on my property. The roof is 4/12 pitch with typical galvanized corrugated metal which is in great shape except the original nails were put in the "valley" instead of the crown/peak of the metal and as a result some of the 2x4's that run across the trusses will need to be replaced due to leaks over the years
To ensure I don't have leaks when I put the roofing back on I came up with two ideas....
Get good quality screws with rubber washers and use the exsisting holes in the tin...or put screws in peak and silicone the old nail holes.
I can't afford to go with all-new metal roofing.
What would you do?
samhill wrote:Working in a steelmill most of my working life I`ve done lots of sheeting & roofing was always done with the screws on the peaks, siding in the valleys. Those roofers that do the valleys must want more work in their lifetime, & I sure wouldn`t be dumb enough to go up on a metal snow & ice covered roof to shovel. If you do slip on a galvanized roof with a good pitch about the only chance you have is the screw heads helping you stop. The newer galvalume roofing is put on with a clip system, the clips are attached first & the sheets snap in so nothing shows on top, that roof will most likely out live who ever has it installed.